Chlorofluoromethane or Freon 31 is the hydrochlorofluorocarbon (HCFC) with the formula CH₂ClF. It is a colorless, odorless, flammable gas.

Uses

Pyrolysis of a mixture of

dichlorofluoromethane Dichlorofluoromethane or Freon 21 or R 21 is a halomethane or hydrochlorofluorocarbon with the formula CHCl2F. It is a colorless and odorless gas. It is produced by fluorination of chloroform using a catalyst such as antimony trifluoride: :CHCl ...

and chlorofluoromethane gives hexafluorobenzene: :3 CHCl₂F + 3 CH₂ClF → C₆F₆ + 9 HCl It was used as a

refrigerant A refrigerant is a working fluid used in the heat pump and refrigeration cycle, refrigeration cycle of air conditioning systems and heat pumps where in most cases they undergo a repeated phase transition from a liquid to a gas and back again. Ref ...

and has an ozone depletion potential of 0.02.

Additional data

Its crystal structure is monoclinic with space group P2₁ and lattice constants ''a'' = 6.7676, ''b'' = 4.1477, ''c'' = 5.0206 (0.10⁻¹ nm), β = 108.205°. At an altitude of 22 km, traces of chlorofluoromethane occur (148 ppt).

References

External links

Thermochemical table at chemnet.ru

Infrared Spectrum of Chlorofluoromethane
* IARC Summaries & Evaluations

Hydrochlorofluorocarbons Halomethanes Refrigerants IARC Group 3 carcinogens {{organohalide-stub